package com.xhd.base;

public class CharacterDemo {
	 public static void main(String args[]) {
	        Character a = new Character('a');
	        Character a2 = new Character('a');
	        Character b = new Character('b');

	        int difference = a.compareTo(b);

		if (difference == 0) {
	            System.out.println("a is equal to b.");
	        } else if (difference < 0) {
	            System.out.println("a is less than b.");
	        } else if (difference > 0) {
	            System.out.println("a is greater than b.");
	        }

	        System.out.println("a is " + ((a.equals(a2)) ? "equal" : "not equal")
	                           + " to a2.");

		System.out.println("The character " + a.toString() + " is "
	                   + (Character.isUpperCase(a.charValue()) ? "upper" : "lower")
	                   + "case.");
	    }

}
